TheTechno Optimist.

Nord Quantique—Nord Quantique raises USD $30M Series A at $1.4B valuationBosonic GKP Error-Corrected QubitsNord Quantique—Nord Quantique demonstrates SPAM errors below 0.1% in GKP bosonic qubitsNord Quantique—Nord Quantique receives CAD $16M in Canadian Quantum Champions Program funding

Nord Quantique

Bosonic GKP qubits, error-corrected quantum computers

CA$1.4B privateest. 2020nordquantique.com (opens nordquantique.com)Checked 10 Oct

The brief

Analyst view
  • Targets 1:1 logical-to-physical qubit ratio by embedding error correction in hardware.
  • Advanced to DARPA's Quantum Benchmarking Initiative Stage B alongside ten other global leaders.
  • Demonstrated SPAM errors below 0.1% in GKP bosonic qubits, a hundredfold advance.

Technical approach

As reported
Bosonic codes

GKP codes in superconducting cavities

GKP codes use the large Hilbert space of superconducting resonators to embed error correction in hardware, reducing overhead for fault tolerance.

SPAM reduction

Post-selected stabilization

Suppresses SPAM (state prep & measurement) errors below 0.1%, a key quantum error correction bottleneck.

Roadmap

Fault-tolerant by 2030

Targets 10^-7 to 10^-9 error rates by 2032 with 2000+ logical qubits in 10 m² cryogenic footprint.

Primer